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科学通报  2015 

BDS/GPS/GLONASS组合的双频单历元相对定位性能对比分析

DOI: 10.1360/N972014-00789, PP. 857-868

Keywords: 北斗,BDS/GPS/GLONASS,相对定位,单历元RTK

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Abstract:

随着我国北斗卫星导航系统(BeiDouNavigationSatelliteSystem,BDS)的建成与运行,目前具备独立服务能力的系统包括GPS,GLONASS和BDS,多系统组合已成为GNSS导航定位发展的必然趋势.基于伪距或载波相位的相对定位是目前利用GNSS实现高精度定位的主要技术手段之一.本文重点分析对比了BDS/GPS/GLONASS单系统、双系统以及三系统组合共7种模式下双频伪距和单历元载波相位相对定位性能.结果表明(1)BDS/GPS/GLONASS组合伪距和单历元载波相位相对定位时,三系统观测值误差比分别设为112和111较合适;(2)BDS/GPS组合的性能要优于GPS/GLONASS以及BDS/GLONASS组合,BDS/GPS/GLONASS三系统组合较双系统组合可进一步改善定位性能;(3)短基线条件下(

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